Precision Jig Grinder
STANDARD ACCESSORIES
1. FANUC Control Motors
2. 4” Spindle Bore
3. Auto 4 Steps Spindle Speed Change
4. H4 0r V8 Turret
5. Auto Coolant, Hydraulic and Lubrication System
6. Splash Guard
7. Hydraulic Tailstock
8. Work Light
9. Tool Box with Tools
OPTIONS
1. Extra Spindle Bore and Motor
2. Spindle Oil Chiller
3. Hydraulic / Manual Chuck
4. C Axis or Spindle 1/15 Degree Indexing
5. Driving tool Turret
6. Steady Rest
7. Follow Rest
8. Special Boring Bar Holder
9. Higher Coolant Pressure
10. Chip Conveyor
11. CE Mark
12. Transformer
JG-1012 CM - Heavy duty model
| Work range of the slides | |
| Range of movement | |
| X Axis | 1200 mm (39"4) |
| Y Axis | 1000 mm (39.4") |
| Z Axis | 250 mm (9.8") |
| W Axis | 400 mm (15.7") |
| Max feed speed | |
| X,Y Axis | 24 m/min |
| Z Axis | 24 m/min |
| Reading resolution (Linear scales) | |
| X,Y Axis | 0.05 um |
| Z Axis | 0.05 um |
| Cs Axis | 0.001 deg |
| Location accuracy | |
| X,Y Axis | ±0.0015 mm |
| Position coder | |
| X,Y Axis | Linear encoder |
| Z Axis | Linear encoder |
| Cs Axis | Magnetic sensor |
| Table | |
| Table area (LxW) | 1200x1200 mm (47.2"x47.2") |
| Permissble load (max.) | 1500 kg |
| Work range of the grinding head | |
| Grinding-spindle speeds | |
| Electrical grinding head | 12000 rpm |
| Weight | 17.2 kg |
| Max. diameter of wheel | Ø180mm |
| Electrical grinding head | 30000 rpm |
| Weight | 11.5 kg |
| Max. diameter of wheel | Ø80 mm |
| Planetary speed | 5~150 rpm |
| Bore-diameter capacity | 20~240 mm (0.8"~9.5") |
| U axis last input increment | 0.001 mm |
| U axis max. stroke | 30 mm (1.18") |
| Outer dimensions and weight | |
| Length | 4600 mm |
| Width | 3600 mm |
| Height (Max.) | |
| Height (Min.) | 12500 kg |
| Weight | 12500 kg |
| Power requirement | |
| Voltage | 220v ± 10% |
| NC controller function | |
| NC controller | Fanuc 31i-B |
A jig grinder is a machine tool used for grinding complex shapes and holes where the highest degrees of accuracy and finish are required.
The jig grinder is very similar to a jig borer, in that the table positioning and spindles are very accurate (far more than a manual milling machine or lathe).
It is almost used by tool and die makers in the creation of jigs or mating holes.
There are usually many peripheral elements to a jig grinder, including linear motors, pneumatic grinding head (or electrical grinding head), and various cooling systems for supplying coolant to the work and machine itself.
The machine operates by a high speed spindle rotation.
The spindles are removable and interchangeable to achieve varying process speeds.
Some spindles are fixed speed (60,000 rpm), others are adjustable (30,000 ~ 50,000 rpm), and still others are very high speed (150,000 rpm).
The main spindle has a wide range of speeds to ensure proper grinder feed rates are maintained.
The machines have a standard X and Y table.
All axes are indexed to 0.0001 on the handwheels.
The machine head adopts linear motors.
The spindle rotates at a variable speed and with an accuracy of 0.0001 for very precise holes and grinding.
A reliable jig grinder will let work to achieve a higher degree of efficiency level.
These features are all critical in precise process.